When booted the machine goes into "checking media" mode for two cycles (looking for a network boot). Not finding anything it throws up a dialog asking to drop into the boot manager, which it does when I hit OK.

Then it shows me three options listed above: Boot0000,Boot0001, and Boot0002, in that order. Notice Boot0000 lists my SSD as Unknown Device. I select this one and I get the normal Grub menu from which I can select the OS to boot and it happily doe